43531465641 has 16 divisors (see below), whose sum is σ = 58131120768. Its totient is φ = 28976428800.

The previous prime is 43531465639. The next prime is 43531465657. The reversal of 43531465641 is 14656413534.

It is a happy number.

43531465641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43531465641 - 2¹ = 43531465639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43531465593 and 43531465602.

It is not an unprimeable number, because it can be changed into a prime (43531465661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9542001 + ... + 9546561.

It is an arithmetic number, because the mean of its divisors is an integer number (3633195048).

Almost surely, 2^43531465641 is an apocalyptic number.

It is an amenable number.

43531465641 is a deficient number, since it is larger than the sum of its proper divisors (14599655127).

43531465641 is a wasteful number, since it uses less digits than its factorization.

43531465641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752.

The product of its digits is 518400, while the sum is 42.

The spelling of 43531465641 in words is "forty-three billion, five hundred thirty-one million, four hundred sixty-five thousand, six hundred forty-one".